VulnerabilityPublished 3 Apr 2026Updated 5 Nov 2026

CVE-2026-23430: Linux kernel · drm/vmwgfx: Don't overwrite KMS surface dirty tracker

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in c6cb77c474a32265e21c4871c7992468bf5e7638 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in c6cb77c474a32265e21c4871c7992468bf5e7638, 354c8bbf8d1e4aa61e580dbe160591feda504e4f, 3f300a41a3668095688aa4551214e8080829fa93

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to c6cb77c474a32265e21c4871c7992468bf5e7638, 354c8bbf8d1e4aa61e580dbe160591feda504e4f or 3f300a41a3668095688aa4551214e8080829fa93.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 965544150d1cadf0e8f5bb6c13c19697e46e1429, < c6cb77c474a32265e21c4871c7992468bf5e7638	Fixed in c6cb77c474a32265e21c4871c7992468bf5e7638
LinuxLinux	Affected ≥ 965544150d1cadf0e8f5bb6c13c19697e46e1429, < 354c8bbf8d1e4aa61e580dbe160591feda504e4f	Fixed in 354c8bbf8d1e4aa61e580dbe160591feda504e4f
LinuxLinux	Affected ≥ 965544150d1cadf0e8f5bb6c13c19697e46e1429, < 3f300a41a3668095688aa4551214e8080829fa93	Fixed in 3f300a41a3668095688aa4551214e8080829fa93
LinuxLinux	Affected =6.16	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Don't overwrite KMS surface dirty tracker We were overwriting the surface's dirty tracker here causing a memory leak.

References

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